[TR] TR4A Radiator

[Randall]

> Heat transfer through aluminum is
> very high on the list, if not the best of commonly available materials,

Except for copper, of course.  Silver and gold also beat out aluminum, but
of course no one is going to make a radiator out of them!

Curiously enough, thermal conductivity pretty closely follows electrical
conductivity (for metals), so the better electrical conductors are also
better heat conductors.

-- Randall